10.1371/journal.pone.0061043.g001Qian ZhaoPing YanRong Fu WangChun Li ZhangLing LiLei YinHPLC result.2013Public Library of Scienceoncologyradiology and medical imaging2013-04-03 00:05:26articlehttps://plos.figshare.com/articles/_HPLC_result_/670326<p>HPLC result of RRL showed there only one peak, indicating the good quality of synthesis.</p>